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/proc in AIX contains a list of all the process running on the system at that time=2E You will see that all the files in that directory is a number=2E these numbers are the process ids of the process on the systesm=2E If u do a ps -ef and grep for one of the numbers in there, you will see the process for that process id=2E

This is a virtual directory and does not occupy any space on the disk=2E

And, unless you're doing some esoteric work with process accounting,
etc., it's mostly useless for everyday work. However, there is at least
one useful feature for when you're trying to determine just who's
sitting in that directory in the filesystem you're trying to unmount:
the 'cwd' file is a symbolic link to the 'current working directory' of
that process. Do the following command to list all of them: